Biblical Criticism & History Forum - earlywritings.com

Would the crucified Christ be born, as Couchoud thought, from a meditation by Paul on the theme of the paschal lamb ("Christ, our Passover lamb, has been sacrificed", 1 Cor 5:7), or on the terms of Psalm LXVIII? This would be to give to Paul an essential invention, he would then be the true creator of Christianity, but Paul is only the spokesperson of a school, of a group: his revelation, so personal as it appears, fits as part of a "conversion" in Damascus, Couchoud did not yet know the manuscripts of the Dead Sea, we now know that Paul's message should be brought closer to the Essene writings, as I will say in Part II. The Paschal Lamb, whose blood redeems men, the crucified of the Archons, is also the Master of Righteousness: "God presented Christ as a sacrifice of atonement, through the shedding of his blood—to be received by faith. He did this to demonstrate the Righteousness —" (Romans 3:25).

That the Christ of Paul is the Paschal Lamb, placed on the cross according to the rite (19), is what emerges from many passages of the Epistles. But it is also one of the themes of the Apocalypse: Christ is the Lamb slain (5: 6 and 12).
All the first century knew only this image of the paschal lamb, placed in the cross. Paul's only originality would be to add: "by the Archons" - which takes us further away from a real fact.

On two crossed sticks: this symbol has impressed Justin (Dialogue with Trypho, 40:3).

...and that lamb which was commanded to be wholly roasted was a symbol of the suffering of the cross which Christ would undergo. For the lamb, which is roasted, is roasted and dressed up in the form of the cross. For one spit is transfixed right through from the lower parts up to the head, and one across the back, to which are attached the legs of the lamb.

On the fourteenth of Nisan, at the third hour of the day (9:00 a.m.), the high priest (Cohen HaGadol) took the lamb and ascended the altar so he could tie the lamb in place on the altar. At the same time on that day, Yeshua was tied to the tree on Mount Moriah (Mark 15:25). At the time of the evening sacrifice (3:00 p.m.) for Passover (Exodus [Shemot] 12:6), the high priest (Cohen HaGadol) ascended the altar, cut the throat of the lamb with a knife, and said the words, "It is finished." These are the exact words said after giving a peace offering to G-d. At this same time, Yeshua died, saying these exact words in John (Yochanan) 19:30. Yeshua died at exactly 3:00 p.m. (Matthew [Mattityahu] 27:45-46,50).

In Exodus (Shemot) 12:8-9, we are told the lamb was to be roasted before sundown. According to the tractate Pesahim in the Mishnah, the lamb was roasted on an upright pomegranate stick. This pomegranate stick is representative of the tree upon which Yeshua died. The lamb was to be gutted, and its intestines were to be removed and put over its head. Thus, the lamb is referred to as the "crowned sacrifice." This is a picture of Yeshua in (Psalm [Tehillim] 22:13-18).
https://hebroots.com/sevenfestivals_chap3.htm